The last volume of each contains an alphabetical index, a chronological index, and an index of printers.
"Bibliographie générale des Pays-Bas" (varies)
Designed to include all books printed in the Netherlands in the 15th and 16th centuries and the principal ones since, books published abroad by Belgian or Dutch authors, those about the Netherlands or printed by printers from the Netherlands
Ser. 1- "par le bibliothécaire en chef et les conservateurs de la bibliothèque de l'Université de Gand."
v. 1-26, 1880-1890, in v. 27; ser. 2, v. 1-26, 1891-1923, in ser. 2, v. 27